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revision 1.83 by mlosch, Thu Sep 5 20:49:32 2002 UTC revision 1.392 by mlosch, Tue Nov 23 20:22:12 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o exf_check_range:
7      * default changed to .TRUE.
8      * will check values for niter0 if debLevA, every timestep if debLevB
9      * STOP in exf_check_range if 'out of range'
10      * range chosen generous to allow for potential extema
11      TBD: a version with stricter range
12           permitted range would be runtime parameters
13    o GMredi:
14      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
15      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
16      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
17    o GCHEM:
18      - move call to GCHEM_FORCING_SEP, so that it is now called before
19        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
20      - introduced a useGCHEM runtime flag and applied it everywhere.
21      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
22        this flag is now only visible within GCHEM-pkg routines.
23      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
24        be replaced by a 3D array that is computed before thermodynamics; for
25        this, the tracer ID iTracer had to be included into the parameter list
26        of ptracers_forcing
27      - set up forward_step for a call to gchem_forcing, that will replace
28        gchem_forcing_int in ptracers_forcing
29      - cleaning up
30    o small cleaning of exch2: remove files that are also in eesupp/src
31    
32    checkpoint56
33    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
34    o mnc: cleanup "full" files--fixes out-of-memory problem
35    o ECCO-GODAE
36      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
37      * fully merged and updated from SIO code
38        windstress sign change affects
39        - exf_inscal_[u/v]stress
40        - sign of xx_tau[u/v] adjustments
41        - signs in cost_scat
42      * ctrl_get_gen: avoid update of tau[u/v] for first few days
43      * natl_box_adjoint updated and compressed
44      * 2-level checkpoint switch added
45        (tested in EXP. 1 of natl_box_adjoint)
46      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
47    o SVD
48      * first complete, non-hacked version for SVD calculations
49      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
50        performed via direct access files admtlm_vector.it????
51        (via ctrl_[un]pack)
52      * optimcycle is used for ARPACK iteration counter
53        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
54      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
55        and add linear transforms where necessary
56      * controls are initial/final SST, SSS (can be extended; need to check
57        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
58    o mdsio: filename info to both stderr, stdout
59    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
60      from sign change
61    
62    checkpoint55j_post
63    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
64      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
65    o add consistent build directories and .cvsignore files to verification
66    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
67    o make all subroutines 30 or less characters in length for certain older
68      compilers to work (a thorough search only turns up two routines in
69      pkg/ptracers)
70    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
71      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
72    
73    checkpoint55i_post
74    o change arrays for total vertical diffusivity (2.D if explicit,
75      3.D if implicit) ; each ptracer uses its own background value.
76    o added mnc/NetCDF output capability to ocn_compon_interf
77      - added bits to verification/cpl_aim+ocn so that it can run on
78        ITRDA and other clusters without the mpirun "-wd" option
79    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
80      configuration
81    o give MNC the ability to create additional files rather than
82      exceeding a specified file size limit "MNC_MAX_FILESIZE"
83      - the default is just less than 2GB which is a practical limit
84        on many systems
85    o Compute the non-local term using either KPP vertical diffusivity (=default)
86       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
87    
88    checkpoint55h_post
89    o add verification test "vermix"
90    o remove all the *_ioinc flags and replace with the single global
91      outputTypesInclusive flag
92    o allow to set a vertical profile of vertical diffusivity for T & S
93    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
94    o useMNC moved from data.mnc to data.pkg
95    
96    checkpoint55g_post
97    o Renaming carbon AD experiments to comply with testreport conventions
98    o Updating adjoint of Held-Suarez hs94.1x64x5
99    o Fixing directives for non-ECCO forward_step, after ECCO directives
100      have been fixed to avoid recomp. of do_oceanic_phys
101      Works well for global_ocean.90x40x15,
102      but recomp. issue remains for carbon
103    o Updating adjoint output for natl_box_adjoint after
104      pkg/ecco has been modified (see taga c55d_post)
105    
106    checkpoint55f_post
107    o rename to timeave_init_fixed
108    
109    checkpoint55e_post
110    o some delicate re-shuffle of store directives to avoid one
111      extra call of do_oceanic_physics
112      affects ecco_the_main_loop.F, do_oceanic_physics.F
113      checkpoint_lev1_directives.h
114    o NB: this may break global_ocean adjoint temporarily,
115      but it is clear how to fix it. Will do later, need this now.
116    
117    checkpoint55d_post
118    o ECCO specific cost function terms (up-to-date with 1x1 runs)
119    o ecco_cost_weights is modified to 1x1 runs
120    o modifs to allow observations to be read in as
121      single file or yearly files
122    o enable to read exf forcing fields as either
123      single file or yearly files (flag useExfYearlyFields)
124    checkpoint55d_pre
125    
126    o switch between 2-level and 3-level checkpointing
127    o add ability of MNC to write local and "partial" (eg. 2D slices where
128      the full 3D field is never actually stored) arrays to NetCDF files
129      with the correct (that is, the complete multi-dimensional) set of
130      array indicies
131      - used in mom_vecinv() to write the diagFreq output
132      - tested (demonstrated) in verification/aim.5l_cs
133    o further mnc-ification
134      - add verification/lab_sea to the list with mnc setups
135      - fix undefined mnc v-names in cd_code
136      - add kpp to mnc output (both snapshot and timeave)
137    o non-hydrostatic code
138      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
139        in calc_gw.F
140      - defaults to viscAh
141      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
142        friction or Leith) in non-hydrostatic mode, as long as there is
143        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
144    o pkg/cost
145      extend simple cost functions to treat time mean quantities
146      (T,U,V) via cost_accumulate_state from cost_tile
147    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
148        be 2 times larger than the minimum size the advection scheme requires.
149        now get a perfect conservation of salt in advect_cs test-exp (updated)
150    o GGL90 (Gaspar's TKE mixed layer)
151      - add horizontal diffusion of TKE, requires exchanges in
152        do_fields_blocking_exchanges, horizontal diffusivity is zero by
153        default. In OPA there is no horizontal diffusion of TKE but the
154        mixing coefficients are computed from a horizontal average of TKE of
155        6 points or so. I think that diffusion has a little more physical
156        justification.
157      - clean up ggl90_calc in the hope of reducing memory usage (this hope
158        was in vain)
159      - mask tke-variable in ggl90_init
160    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
161    o fix biharmonic diffusion on CS-grid.
162    o more obcs stuff
163      - added obcs_external_fields_load as an alternative to the EXF-pkg option
164        for reading boundary values. This routine is called from
165        obcs_prescribe_read
166      - updated obcs_check
167      - changed sponge layer relaxation parameter units for days to seconds
168      - turned off sponge layer by default
169      - changed argument list of OBCS_CALC to myTime+deltaTclock
170      - fixed about 35 bugs in obcs_external_fields_load
171    
172    checkpoint55c_post
173    o obcs stuff
174      - new runtime flags useOBCSprescribe, useOBCSbalance
175      - re-arranged obcs_calc
176      - moved exf_getobcs to obcs_prescibe_read
177        obcs_prescibe_read is called after ORLANSKI stuff
178        and independent of it (executable can contain all).
179      - updated obcs_check
180      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
181        These may be necessary only if tangential velocities are
182        prescribed at OB, not sure, needs testing.
183    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
184      which simplifies the calls and passes the ifc check-bounds test
185    
186    checkpoint55b_post
187    o add a 2D scalar, Z location, exchange_2 routine.
188    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
189      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
190      affects advect_cs results (for the wrong reason): update output.txt
191    o use a more standard discretization for biharmonic viscosity ;
192     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
193      affects results of dome set-up: update output.txt
194    o fix gad_advection.F (CubedSphere part), back to version 1.23
195    o fix bug in mom_vi_del2uv.F (CubedSphere part).
196    
197    checkpoint55a_post
198    o merged code to
199      * prescribe/read time-dependent open boundaries
200        (works in conjunction with exf, cal)
201      * sponge layer code for open boundaries
202      * each boundary N/S/E/W now has its own CPP option
203        (healthy for the adjoint)
204    
205    checkpoint55
206    o up-to-date adjoint of previous breaks
207      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
208      - global_ocean_ebm: adjoint still needs fix (TLM ok)
209      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
210      - carbon: * remove tr1-related adjoint verification
211                * add ptracer as control variable
212    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
213      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
214    
215    checkpoint54f_post
216    o in verification/carbin/ remove experiment related to
217      ALLOW_PASSIVE_TRACER (array tr1 etc)
218      code_ad/ input_ad/ results_ad
219    
220    o add two new packages
221      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
222        + subject to optimization (memory)
223      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
224        + subject to reordering (many GOTOs in the original code)
225        + so far opps is called for every (i,j) point, and then operates in
226          the vertical; one may want to reorder the scheme in order operate in
227          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
228          fields)
229    o overhaul of IO so that we now have flags for MDSIO and/or MNC
230      - all verification tests compile and run with linux_ia32_g77
231      - defaults are compatible with current input files--nothing
232        should change if you were not previously using MNC
233      - MNC output has been added in numerous places (eg. timeave)
234        but there are still a few writes not yet do-able with MNC
235        (this is in progress)
236      - flags now allow for either/or/both use of MDSIO and MNC and
237        documentation will soon follow
238      - numerous small formatting cleanups for ProTeX
239    o add version info (via BUILD_INFO.h) to MNC and stdout
240    
241    checkpoint54e_post
242    o add two new packages
243      - pp81 (Packanowski and Philander, 1981), Richardson number and
244        stratification dependent mixing
245      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
246      - these scheme operate in a similar manner as KPP (without ghat, of
247        course), however there is only one diffusivity that is used for both
248        temperature and salinity (and passive tracers)ç
249    o add offline package
250    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
251      provided by Stephanie Dutkiewicz
252    o genmake2: add ability to search for C compilers and cleanup test output
253      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
254    
255    checkpoint54d_post
256    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
257    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
258      leading to additional shift by 5 days each year of integration
259       (i.e. leading to considerable offset over the years)
260    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
261    o start with no AB and no initial filtering (staggerTimeStep):
262      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
263    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
264      (external loading & cpl import/export stay in forward_step.F)
265    o update coupling interface to work with new staggerTimeStep
266    o change MDSIO ptracers_pickup.
267    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
268    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
269    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
270    
271    checkpoint54c_post
272    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
273      this affects (truncation error) output.txt of test-exp:
274       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
275    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
276    o change Qnet to always be the net heat flux, (+upward).
277      affects (truncation error) output of natl_box exp.: updated
278    o define the max number of passive tracers in PTRACERS_SIZE.h
279    o start to test mnc routinely in exp0
280    o add sea-ice loading (sIceLoad) as a new forcing field.
281    
282    checkpoint54b_post
283    o add testreport "-j JOBS" option for parallel builds (tested and pretty
284       impressive on Altix and Opteron systems)
285    o diagnostics can now write NetCDF files through the mnc package
286    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
287    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
288    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
289      affects (truncation error) output of lab_sea & natl_box exp.: updated
290    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
291    
292    checkpoint54a_post
293    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
294    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
295    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
296    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
297      + internal_wave (shift in writing cg2d_ini_res)
298    checkpoint54a_pre
299    
300    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
301      - modified verification/lab_sea and natl_box_adjoint accordingly
302    
303    checkpoint54
304    checkpoint53g_post
305    o prepare splitting of thermodynamics: store convect.counter in common block
306    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
307      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
308    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
309    o new parameter "nShapS": allow to treat differently S from T (nShapT)
310    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
311    o restore adjointability
312    
313    checkpoint53f_post
314    o modifications that affect AIM experiment results (update output.txt):
315      - no advection of S at top interface Nr (pkg/generic_advdiff)
316      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
317    o AIM pkg:
318      - include stability function into surf.Flux derivative relative to Tsurf
319      - calculate clear-sky radiation & surface temp. change (for diagnostics)
320    
321    checkpoint53e_post
322    o merged cylindrical coord configuration
323    o added rotating_tank experiment
324    checkpoint53e_pre
325    
326    checkpoint53d_post
327    o faulks upgraded: re-generate output.txt that have changed:
328       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
329    o Added Bryan and Lewis, 1979, vertical diffusivity profile
330    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
331    o added Sadourny discretization of Coriolis
332      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
333      - re-enabled use of omega3 (useAbsVorticity)
334    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
335      vector-invariant equations
336      - note: does *NOT* yet use same variable visc. for no-slip BC's.
337    o recoded the lateral boundary conditions for non-hydrostatic w, this time
338      hopefully without new bugs
339      - still to do: biharmonic friction for non-hydrostatic w
340    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
341    o regenerated output for global_ocean_ebm (using -ieee)
342    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
343      of mom_common/
344      - simple re-arrangement of instructions within computing loop
345    checkpoint53d_pre
346    
347    checkpoint53c_post
348    o new version of coupler for AIM+thSIce and Ocean models
349     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
350     - land: change Evaporation of snow
351     - aim with thSIce: fix bug in snow-precip.
352    o changes to calc_gw.F
353     - bug fix for w^2 term near the bottom boundary
354     - (hopefully) improve the lateral slip boundary condtions for use with
355        partial/looped cells
356      - because the bug fix changes two verification experiments anyway (exp5
357        and plume on slope), change the lateral boundary condition from half slip
358        to the value of no_slip_sides
359    o ebm package wasnt quite up to the parallel task. Fixed that.
360    o Adjoint of EBM package + verification
361      * TLM OK
362      * ADM not sufficient accuracy yet (needs further testing)
363    
364    checkpoint53b_post
365    o Commiting new energy balance model to repository
366      * package is pkg/ebm
367      * verif. is verification/global_ocean_ebm
368      * references are in ebm_driver.F
369    C      * X. Wang, P. Stone and J. Marotzke, 1999:
370    C        Global thermohaline circulation. Part I:
371    C        Sensitivity to atmospheric moisture transport.
372    C        J. Climate 12(1), 71-82
373    C      * X. Wang, P. Stone and J. Marotzke, 1999:
374    C        Global thermohaline circulation. Part II:
375    C        Sensitivity with interactive transport.
376    C        J. Climate 12(1), 83-91
377    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
378    C        Destabilization of the thermohaline circulation
379    C        by atmospheric eddy transports.
380    C        J. Climate 7(12), 1870-1882
381    o Will need long integration testing.
382    checkpoint53b_pre
383    
384    o created pkg/mom_common in preparation for variable viscosity code
385    o renamed and split ini_mnc_io
386    o pkg/land: only liquid water can diffuse or run-off
387    o AIM using land: soil wetness availability account for snow
388    o added printMapIncludesZeros to EEPARMS namelist
389    
390    checkpoint53a_post
391    o restore TAMC compatiility for exf_constants.h
392      (no usage of _d in .h)
393    o Additional storing in KPP in an attempt to fix
394      TAMC problem with adjoint of KPP code.
395      (no success...)
396      Identical code works fine with TAF.
397    o Fixed verification/natl_box_adjoint experiments.
398      Initial conditions for Experiments 4 and 5 are now
399      set to "SEAICE_initialHEFF=0", which is more reasonable,
400      and hence gives results closer to that of Experiment 2.
401      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
402    
403    checkpoint53
404    o stable checkpoint with up to date adjoint
405      TLM tests only run for 1st grdchk at the moment. Its unclear if
406      this is a code problem or a problem with resetting code for g_
407      variables that is being autogenerated wrong.
408      Otherwise:
409       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
410       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
411         are both still in chaos following their security messes.
412    
413    checkpoint52n_post
414    o various build (mostly genmake2) changes including:
415      - ability to build/run more easily within Cygwin and MacOS X
416      - more complicated Makefiles with a stronger dependence on Gnu Make
417    o pkg/seaice modifications
418      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
419        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
420        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
421      - changed proxy for geostrophic velocity and updated
422        verification/lab_sea/results/* accordingly
423      - removed ADI dynamic solver from pkg/seaice
424      - replaced all occurrences of 1/CSTICE or 1/CSUICE
425        they caused a segmentation fault under certain circumstances
426      - removed unused field WATR
427    o bug fix in exf-package:
428      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
429         now reflect that.
430    o small fixes in the cal-package:
431      - set reference date to first of January for the 'model'-calendar
432      - failing of cal_CheckDate in cal_FullDate now actually results in a
433        warning
434    o small modifications in exf-package to increase flexibility:
435      - change climtempfreeze from a constant to a runtime parameter that
436        is specified in data.exf_clim (default = -1.9)
437      - introduce runtime parameter windstressmax (default = 2.0) that is
438        specified in data.exf
439    o fix in pkg/thsice:
440      - update Evap (Tsf changes) to be consistent with Latent heat flux
441      - maintain snow precipitation unchanged (even if Tsf >=0).
442     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
443    
444    checkpoint52m_post
445    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
446      this does not change any of the results, because myIter=0 in swfrac always
447      lead to jwtype=2 (the default anyway), but the call makes little sense
448      as a default
449    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
450    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
451      atmospheric model (AIM) to use it ; add a "slab ocean" component.
452    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
453    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
454    o extending useSingleCpuIO option to work with new exch2 I/O format
455      - old-style, missing-tile I/O is still accessible by defining CPP
456        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
457    o monitor package can write to NetCDF files and/or STDOUT
458    o fix re-definition bug in MNC_GRID_INIT_ALL()
459    o doc/api_reference added
460      - a framework for building an API Reference Manual using all
461        the "protex" comments embedded in the code
462      - see pkg/generic_advdiff, pkg/mnc for examples
463    o MNC:
464      - make myThid the last argument for all subroutines
465      - new default for the grid files: NO halos
466      - add useMNC and other run-time flags
467      - separate per-file-group handling of the unlimited dimension
468      - early initialization of MNC w/ flags read at the eeboot stage
469        and lookup tables set in initialize_fixed
470      - write all MNC output to a freshly-created directory
471    o thermodynamics sea-ice (thsice) is now tested with testreport.
472    o test exp. advect_cs: use the standard cs32 grid ; update output.
473    o Added functionality to grdchk:
474      pick global i,j,k position (or nearest wet) where to perform check.
475    
476    checkpoint52l_post
477    o new land formulation:
478      a) use ground enthalpy as prognostic variable to ensure exact
479         energy conservation.
480      b) account for water temperature and for latent heat of freezing
481         in all processes (rain, run-off, ground storage)
482      c) compute surface and ground temperature implicitly.
483    o aim_v23 modification for new land model:
484      a) Treat separately land / ocean / sea-ice surface fluxes
485         to allow implicit computation of land & sea-ice surface temp.
486      b) add snow precipitation.
487    checkpoint52l_pre
488    
489    o fix problem (when 1 tile is empty) in min/max monitor.
490    o fix bug in timeAve (u,vZetatave in common block)
491    o no restoring terms under ice for pkg/seaice
492    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
493    o bug fix for pkg/seaice pickups
494    o change MNC call locations and add coordinate attributes
495    o mask vorticity at the corner ; affects global_ocean.cs output
496    o fix ini_curvilinear_grid ; test CS experiments with mpi
497    o aim.5l_cs: modify sea-ice fraction input file ; update output
498    o exf: Adding simple range check routine for exf fields after read
499    
500    checkpoint52k_post
501    o removed top-level directory "diags"
502      - we migrated these functions to pkg/timeave a long time ago
503    o fixed bug introduced in pkg/monitor
504    o accuracy ctrlprec = 32 insuffient for gradient checks using
505      averaged fields (I/O via cost_averages)
506      -> use ctrl.h in active_file*.F to control I/O precision.
507    o paramter list of CALL ADTHE_MAIN_LOOP
508    o added initial do_the_model_io to ecco
509    o set all ...Freq to zero after cost_final
510      taveFreq, dumpFreq, pChkptFreq
511    o MAIN and ECCO differentiability restored
512    
513    checkpoint52j_post
514    o fix nchklev in tamc.h for global_ocean...
515    o Bringing flow and store directives up-to-date
516    o Really weird thing!
517      call do_the_model_io from the_main_loop with parameters
518      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
519      TAF places a faulty re-call of initialise_varia
520      after cost_final call which should not be there!
521    checkpoint52j_pre
522    
523    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
524      error messages
525    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
526    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
527      debug output
528    o modfied mdsio_writefield.F to handle non-global files under exch2
529    o update AIM Cubed-Sphere exp (aim.5l_cs):
530      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
531    o update AIM Equatorial Channel exp:
532      use standard aim_v23 pkg and change the SST fields to be more realistic.
533    o globalFile now works with exch2
534    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
535      mon_vort3.F to make exch2 friendly with >1 tile per cube face
536    o limit timeave output for hi-res integrations
537    
538    checkpoint52i_post
539    o removed CPP_EEOPTIONS.h from verification/*/code
540    o updated the tiling for global_ocean_pressure
541    checkpoint52i_pre
542    
543    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
544      the old pkg/aim).
545    
546    checkpoint52h_pre
547    o shortened offending lines in exch2_send_rx?.template
548    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
549    o genmake2: add build & execute test for NetCDF code
550    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
551      old grid files, moved CPP_EEMACROS.h to pkg/exch2
552    o added useSingleCPUIO flag to monitor.F and mon_out.F
553    o added temporary hack for sea-ice dynamics on the cube:
554      metric terms are ignored and it is assumed that
555      there is no sea-ice on cube faces 1, 2, 4, and 5.
556    
557    checkpoint52f_post
558    o added exch2 cube routines to pkg/exch2
559    o modified hs94.cs-32x32x5 to use it
560    o added new grid files to hs94.cs-32x32x5
561    checkpoint52f_pre
562    
563    checkpoint52e_post
564    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
565      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
566    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
567      to work with implicit vertical advection and AB ;
568    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
569    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
570     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
571    checkpoint52e_pre
572    
573    o fix bug in impldiff when Nr=1 or Nr=2.
574    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
575    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
576    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
577      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
578    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
579    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
580    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
581    
582    checkpoint52d_post
583    o re-tiled many expts to allow comparison in multi-processor mode
584      - updated output accordingly
585      - changed hs94.128x64x5 to use intial T from file rather than use the
586        random number generator
587    o add infrastructure in model routines for fizhi and gridalt packages
588    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
589    o changes to permit hi-res, cubed-sphere, configuration
590      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
591      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
592      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
593        of surface winds for the cube
594      (A verification experiment, based on global_ocean.cs32x15, but with
595       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
596       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
597       complete with example surface forcing files and matlab scripts to look
598       at the output and compare it with that of global_ocean.cs32x15.)
599    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
600       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
601       to conform to the common rule.
602    o check-in the first version of the coupler + interfaces for multi-components
603       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
604       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
605       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
606       - ocean and atmos. share the same horizontal grid (no interpolation).
607       - exchanges between component and coupler is done in forward_step
608    o new verification experiment, cpl_aim+ocn:
609       coupled ocean - AIM atmosphere on cs32 grid.
610    
611    checkpoint52d_pre
612    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
613    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
614    
615    checkpoint52c_post
616    o Fixing OPTIONS files for use of exf:
617      - ALLOW_ECCO not needed
618      - ECCO_CPPOPTIONS.h should not be included from
619        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
620        as has been the case in the past
621      - All cal/exf related options are currently set in
622        single header file. Should remain so until we
623        agree on a consistent new policy.
624    o Removed all CPP options for cal package.
625      cal has no more CPP options.
626    o modified STOREs in GAD_ADVECTION
627    o corrected key comp. for passkey
628    
629    checkpoint52b_post
630    o new version: "thsice" of thermodynamic sea-ice pkg:
631     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
632     - modify fluxes but do not change theta directly;
633     - light cleaning of bulk_force pkg (still needed with thsice).
634     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
635       + output_thsice.txt to test thsice & bulk_force pkgs.
636    o put back grid & coriolis monitor output.
637    checkpoint52b_pre
638    
639    o call "do_the_model_io" at the beginning (=> dump initial state)
640    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
641    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
642      (need info on NUMBER_OF_PTRACERS)
643    o missing PTRACERS headers in some routines
644    o default tamc.h in pkg/autodiff supposed to crash
645      to ensure proper customization
646    
647    checkpoint52a_post
648    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
649      - moved surfaceTendencyTice from pkg/seaice to main code
650      - subroutine FREEZE_SURFACE now limits only surface temperature
651        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
652        => new output.txt for global_ocean.cs32x15 & global_with_exf
653      - keep the old version of FREEZE for backward compatibility;
654        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
655      - corresponding modifs for TAF directives
656    o added surface flux output variables to TIMEAVE_STATVARS
657    o time-averaged output for pkg/ptracers
658    o fix problem with ECCO-related divided adjoint
659      snapshot file was missing some ad-variables,
660      but no warning issued by TAF
661    
662    checkpoint52a_pre
663    o some bug fixes for #undef REAL4_IS_SLOW
664    
665    checkpoint52 = ecco_c52_e35
666    o after testing adjoints of checkpoint51u_post
667    
668    checkpoint51u_post
669    o this is the post-merge tag of the ecco-branch
670      (needs another clean checkout and re-testing)
671    o various natl_box_adjoint configs and results
672      but no input fields
673    o obcs adjoint not yet merged!
674    o adding ECCO global 1x1 and 2x2 degree configs
675    o updated/extended some store directives for seaice
676    o pkg/ecco now containes ecco-specific part of cost function
677    o top level routines the_main_loop, forward_step
678      supersede those in model/src/
679      previous input data.cost now in data.ecco
680      (new namelist ecco_cost_nml)
681    o in ctrl/ cleaned some cross-dependencies and updated CPP options
682    
683    checkpoint51t_post
684    o this is the pre-merge tag of the ecco-branch
685    
686    checkpoint51s_post
687    o cleanup: removed various obsolete #define-s
688    o pkg/grdchk
689      - renamed 'ph-grd 3' to 'grad-res'
690      - merged from ecco-branch
691        (remaining bug fixes for obcs gradient checks)
692      - additional high-precision output for testreport
693        (grep for 'precision_grdchk_result')
694    
695    checkpoint51r_post
696    o cleaned up or removed CPP_OPTIONS.h files
697    o updated results for some of the tests to reflect the new
698      optfiles (-ieee: -O0 instead of -O3)
699    
700    checkpoint51q_post
701    o cd_code:
702      - moved cd_scheme.F -> cd_code_scheme.F
703      - separate read_checkpoint from cd_code_ini_vars.F
704      - separated cd_code part from write_checkpoint
705      - updated AD_SOURCE, generated .flow
706      - added CD_CODE_VARS.h to the_main_loop
707      - Moving cd_code specific store dir.s to pkg/cd_code
708    o ctrl package totally restructured
709      - pack/unpack now optional and decoupled from
710        xx_/adxx_ I/O
711      - ctrl_pack/unpack cleaned
712        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
713      - confined inclusion of AD_CONFIG.h to where necessary.
714    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
715    
716    checkpoint51p_post
717    o create initial cd_code package
718      - WARNING: the initialization of fields within packages
719        is broken because INI_FIELDS (where READ_CHECKPOINT is
720        called) is called *before* PACKAGES_INIT_VARIABLES.
721        This seems to be backwards since
722        1) its important to initially zero the entire field including
723           the "halo" region
724        2) zeroing needs to be done *before* reading pickup info
725           and the pickup call might or might not happen in any
726           particular run
727      - this needs an overhaul for R2
728    o cleanup verification/*/code/GMREDI_OPTIONS.h
729    o cleanup testreport
730    
731    checkpoint51o_post
732    o bringing AD-related verif's up to date with genmake2
733      - carbon/
734      - global_ocean.90x40x15/
735      - hs.94.1x64x5/
736      - (front_relax/ )
737    o (more) consistent directory structure for AD-related verif.'s
738    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
739    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
740    o bug fix in find_alpha.F for MDJWF:
741      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
742        change rho -> rho-rhoConst
743      - replace call find_rho to find_rhonum
744    o initialisation of rFlx extended to full array (required by TAF)
745      and shifted to thermodynamics
746    o removed PTRACERS.h in ptracers routine
747    o added surfacetendencyPtr to S/R parameter list pracers_forcing
748    o Correcting initialisations for fVerU, fVerV.
749    o helping TAF to recognize dependency on kUp for
750      fVerU, fVerV
751    o Replacing delZ by delR in pkg/ctrl/
752    checkpoint51o_pre
753    
754    o undid all of cp51 pending some cleanups and discussion
755    o added the [#include "AD_CONFIG.h"] statement to all files that need
756       it for adjoint/tl #defines
757     o re-worked the build logic in genmake2 to support AD_CONFIG.h
758     o removed tools/genmake since it no longer works
759    
760    checkpoint51n_post
761    o modifications to make FREEZE flux visible to pkg/kpp
762      - moved surfaceTendencyTice from pkg/seaice to main code
763      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
764      - subroutine FREEZE now limits only surface temperature
765        (this means new output.txt for global_ocean.90x40x15,
766         global_ocean.cs32x15, and global_with_exf)
767    o added surface flux output variables to TIMEAVE_STATVARS
768    
769    checkpoint51n_pre
770    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
771    o added [#include "AD_CONFIG.h"] to all files that use the following
772      defines:
773      - ALLOW_ADJOINT_RUN
774      - ALLOW_TANGENTLINEAR_RUN
775      - ALLOW_ECCO_OPTIMIZATION
776    
777    checkpoint51m_post
778    o incorporating changes to get TAMC/TAF working in genmake2
779      - added new TAMC/TAF targets to the Makefile
780      - various cleanups related to package handling
781      - these changes should have no impact on the forward model
782    
783    checkpoint51l_post
784    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
785     - faster algorithm for cal_addtime.F
786     - higher precision arithmetic, where needed
787     - pkg/exf *startdate variables changed from calendar date to
788       model integration time
789    
790    checkpoint51l_pre
791    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
792    o enable to apply restoring on S & T only in a latitude band.
793    o update output (external_forcing_surf modif. change truncation errors)
794       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
795    
796    checkpoint51k_post
797    o change default to: useNHMTerms=.FALSE.
798     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
799       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
800     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
801        exp1, ideal_2D_oce
802     - change data file of oceanic exp (leave the results unchanged for now)
803       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
804    o set gravitySign automatically according to the vertical coordinate used
805      (and change sign: back to "logical" value: +1 when R increases downward)
806    o added an include barrier to the default CPP_OPTIONS.h and
807      removed the #include "PACKAGES_CONFIG.h" from it
808    o fix a bug in mom_fluxform (from chk51j_post)
809    
810    checkpoint51j_post
811    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
812    o adjusted some flow directives (dynamics, thermodynamics)
813    o added cubed-sphere case to test cost function
814    o heckpoint_lev?_directives.h now include
815      pkg-specific directives, whenever those are enabled.
816    o Moving pkg-specific flow directives to corresponding pkg
817      Moving pkg-specific differentiation list to corresponding pkg
818      Moving pkg-specific checkpoint-lev storing to corresponding pkg
819      ---> conventions are
820           - pkg_ad.flow
821           - pkg_ad_diff.list
822           - pkg_ad_check_lev?_dir.h
823    
824    checkpoint51i_post
825    o merge of the branch-genmake2
826      - knowingly breaks the older genmake
827      - automatic generation of all ALLOW_${PKG_NAME} defines
828      - new testreport supersedes older testscript
829    o large number of package inclusion and header cleanups
830    checkpoint51i_pre
831    
832    o new output for adjoin of global ocean vector invariant
833    o fix for checkpoint of thermodynamic seaice and bulk_force
834    o Steph gchem various cleanups
835    
836    checkpoint 51h_pre
837    o fixed some single quotes
838    o modify gchem pkg to be more versatile
839    o modifications to clean up dic pkg
840    o add pkg/cfc
841    
842    checkpoint51g_post
843    o provide links for ARPACK and ADM*TLM
844    o start removing verification/vero/
845    o update AD-related stuff
846      (in particular some IF-statements in model/src/ routines)
847    o adding to verification/global_ocean.90x40x15/ adjoint of
848      vector invariant setup
849    
850    checkpoint51f_post
851    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
852    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
853      of tracer Green's fucntions for ocean inversion project.
854    
855    checkpoint51f_pre
856    o Added on-the-fly spatial interpolation capability
857        "USE_EXF_INTERPOLATION" to pkg/exf.
858      - This is a temporary Cartesian-grid hack until
859        the super-duper ESMF coupler becomes available.
860      - See verification/global_with_exf/README for usage example.
861      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
862        flags and modified pkg/seaice accordingly.
863    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
864        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
865        non-local transport term.
866    
867    checkpoint51e_post
868    o pkg/mom_vecinv:
869      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
870      - add time-ave diagnostic of vorticity advection.
871    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
872    o atmospheric geopotential: - include water vapor effect;
873                                - use p^kappa in p* scaling.
874    o land pkg: read initial state from files.
875    o AIM : add stratospheric drag in the upper level
876    
877    checkpoint51d_post
878    o change function ILNBLNK (=> last non-blank char.) to return zero
879      (instead of the string length) when the string. char is empty
880    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
881    o modif's to restore TAMC compatibility
882      - avoid "_d" constructs in PARAMETER declarations
883      - avoid interrupting lines by comment lines
884    o Use cluster local disks for purely local I/O
885      vs. globally visible disks needed for ctrl stuff
886      (merged from ecco-branch)
887      - new active_file_loc... and mdsio_..._loc routines
888      - affected packages: autodiff, ctrl, grdchk, mdsio
889    
890    checkpoint51c_post
891    o introducing integer flag debugLevel
892      - debLevZero: suppress all output
893      - debLevA: standard
894      - debLevB: equivalent to current debugMode=.TRUE.
895    o introducing pathname variable mdsioLocalDir for mdsio
896      that can be specified at runtime
897      (relevant for cluster I/O to local disk)
898    `
899    >>>checkpoint51b_post
900    adjoint of ptracers
901    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
902    o extended state in checkpoint_lev?, etc.
903    o alternative ctrl/cost with tr1 or ptracer
904    o new comlev1_bibj_ptracers
905    o new ptracers.flow
906    o made ptracers_forcing same as external_forcing_s
907    o added verification for adjoint with ptracers
908      - adm. grdchk fail so far
909      - tlm. grdchk OK
910      - checked tapelev/comlev recomputations: OK
911    <<<checkpoint51b_pre
912    
913    checkpoint51a_post
914    o added code for biogeochemistry package
915      - new pkgs: dic, gchem
916      - new subroutine in ptracers
917    o modify code for biogeo packages
918      - in model/src and pkg/ptracers
919    
920    checkpoint51
921    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
922      - autodiff, ctrl, exf, grdchk, seaice
923      kept separate packages
924      - cost, ecco, obcs
925    o updating verification/internal_wave, verification/lab_sea
926      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
927    
928    checkpoint50i_post
929    o Preparing next differentiable checkpoint and sync
930      of MAIN vs. ecco-branch
931      - 1st step: this one is differentiable
932      - 2nd step: next(! not this) checkpoint will have updated packages
933                  from ecco-branch)
934    
935    checkpoint50h_post
936    o new package "land": provide surface BC for AIM.
937    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
938    o AIM: use true log-P extrapolation for near surface temp (= as in
939        F.Molteni paper) ; update aim.5l_cs output.
940    o New variable in PARM03 for more flexible pickups
941    o somewhat cleaned package initialisation sequence for
942      ctrl/ cost/ ecco/ in packages_... routines
943    
944    checkpoint50g_post
945    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
946      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
947      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
948        made the default because of faster convergence than ADI
949    
950    checkpoint50f_post
951    o exf totally restructured
952      - replaced all exf_set_ routines by one generic exf_set_gen.F
953        and made sure it's still differentiable
954      - split exf_getffields.F into new exf_bulkformulae.F
955      - exf_inscal_/exf_outscal_ suffixes consistent with field names
956      - updated adjoint/makefile and relevant verif. accordingly
957    
958    checkpoint50f_pre
959     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
960          + change Evap over land. (update aim.5l_cs output)
961     o added missing .cvsignores and made uniform across expts
962     o changed configuration of tidal_basin_2d expt
963     o added pkg/debug functions for tracing code in fatal crashes
964     o tidied pkg/monitor to use MONITOR_OPTIONS.h
965     o new fn in pkg/monitor to stop model if solution grows too big
966     o removed lots of single quotes from comments
967    
968    checkpoint50e_post
969    o make KPP work with PTRACERS
970     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
971       nearly a copy of kpp_transport_s
972     - there is no analogue to SurfaceTendencyS, so I have to use
973       gPtr(of the surface layer) instead
974    o add a new platform SunFire+mpi (SunFire 15000) to genmake
975    checkpoint50e_pre
976    
977    checkpoint50d_post
978    o change kpp output from multiple-record state files to single-record state
979      files analogous to write_state.F
980    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
981      analogous to the cg2d-related output.
982    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
983      so that writing to internal file fn (with length 512) fails.
984    checkpoint50d_pre
985    
986    checkpoint50c_post
987    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
988    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
989    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
990    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
991    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
992    
993    checkpoint50c_pre
994    Merging from release1_p13:
995    o bug fix for pkg/seaice dynamic solver
996    o Added SEAICE_initialHEFF to pkg/seaice
997    
998    checkpoint50b_post
999    o store u*,v* in gU,V instead of in guNm1,gvNm1
1000    o in order to put the momForcing out of the Adams-Bashforth:
1001      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1002      to timestep.F
1003    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1004    o re-generate output for highly sensitive test-exp:
1005       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1006    
1007    checkpoint50b_pre
1008    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1009    o corrected CPP option mismatch in exf_Bulk... functions for case
1010      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1011    
1012    checkpoint50a_post
1013    o Bug fix for merging between c50 and KPP.
1014      ikey was passed from thermodynamics to kpp_calc via
1015      common block rather than being recomputed in kpp_calc,
1016      in contradiction with new key itdkey.
1017      New key ikppkey created, and tamc.h headers updated.
1018    
1019    checkpoint50
1020    - 2nd step of merge with ecco-branch:
1021      merge changes in ecco-branch back into main trunk
1022    - bug fix in find_alpha
1023    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1024    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1025    - merged some sliced AD support routines
1026    
1027    checkpoint49
1028    merged from ecco-branch:
1029    o exf:
1030      - Enable initialisation of forcing fields to constant
1031        (runtime) values.
1032      - in exf_getffields.F
1033        Reduce i-/j-loop to interior domain, discarding overlaps.
1034        That also fixes wrong TAF-key computations for key_1, key_2
1035        with bulf formulae.
1036      - exf_init.F modify #ifdef for exf_init_evap
1037      - exf_getffieldrec.F, ctrl_getrec.F
1038        The following INT-usages are not safe:
1039          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1040          fldcount = int(fldsecs/fldperiod) + 1
1041        and were modified.
1042    o autodiff: checkpoint_lev...
1043      - updated storing for bulk formulae (some arrays were missing)
1044      - added state for seaice package
1045      - synchronized with main branch
1046    o DIVA:
1047      Modif.s in
1048      - the_main_loop.F
1049      - the_model_main.F
1050      and added cost_final_restore.F cost_final_store.F
1051      o With these changes, it is possible to fully separate
1052        the first forward run to compute the cost function (mdthe_main_loop)
1053        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1054        into separate model executions.
1055        This enables better tuning of DIVA to given queue sizes.
1056      o Loss of cost function value in consecutive DIVA runs is
1057        fixed by storing to 'costfinal' file.
1058      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1059        beginning/end of adjoint integration is accounted for.
1060      The current changes apply to TAF-1.4.26.
1061      TAF has one remaining bug, requiring one manual change
1062      (see MITgcm manual).
1063    o cal: synchronized between MAIN and ecco-branch
1064    
1065    checkpoint48i_post
1066    o Changes to restore differentiability of code w.r.t. previous tag
1067      (mostly adding new routines to make list and replacing
1068      pressure by totPhiHyd).
1069    o Updated and merged grdchk package
1070      - has both ADM and TLM checks
1071      - works for single- and multi-proc.
1072      - output cleaned
1073      - worked successfully for parallel DIVA
1074    o genmake:
1075      - Adding -platform=SP4
1076      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1077    o Modif. for DIVA:
1078      ctrl_unpack should not be called in intermediate DIVA interval.
1079      (similar thing would apply for active files such as
1080      tbar, sbar, psbar, which should not be reinitialised;
1081      only relevant for ecco-branch)
1082    
1083    checkpoint48h_post
1084    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1085    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1086    o Added SEAICE_initialHEFF to pkg/seaice
1087    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1088    
1089    checkpoint48g_post
1090    --- EOS:
1091    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1092      store total Potential in totPhyHyd for diagnostics & EOS.
1093    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1094    --- Pressure/geopotential gradient:
1095    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1096    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1097      ( changes results of global_ocean_pressure )
1098    o NLFS + z-coord.: add eta*Rho' contribution.
1099    o accurate phiHyd when using interface-W at the middle between 2 centers
1100     ( changes results of ideal_2D_oce )
1101    o includes r* 2nd term in potential gradient.
1102    
1103    checkpoint48f_post
1104    Merging from release1_p12:
1105    o Modifications for using pkg/exf with pkg/seaice
1106      - improved description of the various forcing configurations
1107      - added basic radiation bulk formulae to pkg/exf
1108      - units/sign fix for evap computation in exf_getffields.F
1109      - updated verification/global_with_exf/results/output.txt
1110    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1111      (SBO) core products, including oceanic mass, center-of-mass,
1112      angular, and bottom pressure (see pkg/sbo/README.sbo).
1113    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1114      to avoid negative values in shallow regions.
1115      - updated verification/natl_box/results/output.txt
1116      - updated verification/lab_sea/results/output.txt
1117    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1118    o Added useSingleCpuIO option (see PARAMS.h).
1119    o Updated useSingleCpuIO option in mdsio_writefield.F to
1120      work with multi-field files, e.g., for single-file pickup.
1121    o pkg/seaice:
1122      - bug fix in growth.F: QNET for no shortwave case
1123      - added HeffFile for specifying initial sea-ice thickness
1124      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1125    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1126      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1127    o pkg/seaice:
1128      - adjoint-friendly modifications
1129      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1130    
1131    checkpoint48e_post
1132    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1133    o dynamics: change definition of computational domain & adapt mom_fluxform
1134      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1135    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1136        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1137        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1138        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1139        inverted_barometer solid-body.cs-32x32x1
1140      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1141    
1142    checkpoint48d_post
1143    o in preparation for r*:
1144     a) use pre-computed gradient of hydrostatic potential:
1145        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1146     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1147        => affects results of glob_oce_pressure (different truncation error)  
1148      update output.txt of ideal_2D_oce & global_ocean_pressure
1149    
1150    checkpoint48d_pre
1151    o in preparation for r*:
1152      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1153      pass the 2 comp. of the grad. as arguments to momentum S/R.
1154      but for the moment, only used if it does not change the results.
1155    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1156    
1157    checkpoint48c_post
1158    Modifications in treatment of initial flux forcing controls
1159    to avoid extra storing of flux fields.
1160    
1161    checkpoint48c_pre
1162    o Added tidal_basin_2d experiment (currently 1D!)
1163    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1164    
1165    checkpoint48b_post
1166    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1167     (modification to pressure gradient not yet implemented)
1168    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1169      (for U & V) that are used for vertical advection of momentum.
1170    
1171    checkpoint48a_post
1172    o In preparation for r*, use temp. array to compute vertical transport
1173       in flux-form momentum pkg. => change results of few test-exp.
1174      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1175                        lab_sea, natl_box & plume_on_slope
1176    
1177    checkpoint48
1178    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1179    
1180    checkpoint47j_post
1181    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1182    o moved adexch from forward_step to addummy_in_stepping
1183    o added exch in ctrl_map_...
1184    o aveFreq.=0. at end of cost_final to avoid overwrite in
1185      reverse checkpointing loop
1186    o Yet more changes in gmredi:
1187      * adgmredi_calc_tensor
1188        avoiding all recomputation of gmredi_slope_limit
1189      * adgmredi_x/y/rtransport
1190        added flag for excessive storing to avoid recomp. of
1191        u/v/rtans, dTdx/y/z
1192        -> this is not really necessary and very memory-consuming
1193      * adgmredi_slope_psi:
1194        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1195      * gmredi_slope_limit
1196        re-activated full calculation of taperfct for case 'ac02'
1197    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1198    
1199    checkpoint47i_post
1200    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1201    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1202      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1203    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1204    o gmredi: fix few bugs.
1205    
1206    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1207    This will be a good checkpoint to plug into the ecco-branch.
1208    o few modif.'s to get latest version adjointed
1209      (mainly kick out code in ini_linear_phisurf)
1210    o modif's to run adjoint with exactConserv
1211    o case GM_BOLUS_ADVEC should be cleaned
1212      S/R gmredi_slope_psi should be cleaned
1213    o verification/carbon now has exactConserv=.TRUE.
1214    
1215    checkpoint47g_post
1216    o time-average AIM output: becomes independent from statvars time-average
1217      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1218    o After TAF bug fix:
1219      Tested adjoint of gmredi package.
1220      Tests were done with checkpoint47 rather than with latest
1221      checkpoint47f_post since the latter is broken for the adjoint
1222      verification/carbon/ contains both ADM and TLM gradient checks.
1223    Here they are, before they get changed/lost/stolen.
1224    Mostly modif.'s to fix numerical sensitivities.
1225    Gradient checks OK for
1226    - GM_taper_scheme:
1227      * clipping
1228      * ac02
1229      * linear
1230      * glw91
1231      * dm95
1232      * ldd97
1233    - GMREDI_OPTIONS:
1234      * GM_VISBECK_VARIABLE_K
1235      * GM_NON_UNITY_DIAGONAL
1236      * GM_EXTRA_DIAGONAL
1237      * GM_BOLUS_ADVEC
1238    in conjunction with data.gmredi parameters to be checked in
1239    in a few minutes under verification/carbon/code/
1240    
1241    checkpoint47f_post
1242    Merging from release1_p10:
1243    o modifications for using pkg/exf with pkg/seaice
1244      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1245        and SEAICE_EXTERNAL_FLUXES
1246      - pkg/exf CPP options EXF_READ_EVAP and
1247        EXF_NO_BULK_COMPUTATIONS
1248      - usage examples are Experiments 8 and 9 in
1249        verification/lab_sea/README
1250      - verification/lab_sea default experiment now uses
1251        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1252    
1253    checkpoint47e_post
1254    o created a tag prior to creating a branch
1255    
1256  checkpoint47d_post  checkpoint47d_post
1257    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1258      at the bottom boundary had an erroneous half slip boundary condition
1259    o added bottom drag and no slip boundary condition capabilities to
1260      oceanic pressure coordinates code
1261    o added new verification experiment global_ocean_pressure, this experiment is
1262      also described in the tutorial section of the manual
1263    checkpoint47d_pre
1264    
1265    checkpoint47c_post
1266    o Added a verification experiment for a global cubed-sphere ocean run
1267      -  verification/global_ocean.cubed32x32x30
1268      -  uses pkg/therm_seaice and pkg/bulk_forcing
1269    
1270    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1271    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1272      when using P-coordinate; only implemented for atmospheric config.
1273    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1274      NOTES: requires option NONLIN_FRSURF to be "#define".
1275    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1276    
1277    checkpoint47b_post
1278    Merging from release1_p9:
1279    o pkg/seaice
1280      - removed GOTO's and added taf directives
1281      - double precision constants to reduce the g77 (Linux)
1282        to F77 (SGI) differences reported in release1_p8
1283    o tools/genmake
1284      - added SGI options
1285    o verification/testscript
1286      - updated to that of checkpoint47a_post
1287    o verification/global_ocean.90x40x15/input/eedata
1288      - modified for SGI f77 compatibility
1289    o verification/lab_sea
1290      - added description of sea-ice model
1291      - added missing matlab routines
1292      - added test of thermodynamics parallelization
1293    
1294    checkpoint47a_post
1295    o new pkg: aim_v23
1296     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1297       for now, keep the same surface forcing as before.
1298     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1299     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1300     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1301    o add diagnostic of surface correction term in monitor output
1302    
1303    o bulk_force and therm_seaice
1304    - Two packages:  bulk_force (Bulk forcing)
1305      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1306    - Earlier integration from Stephaine Dutkiewicz
1307      and Patrick Heimbach.
1308    - Two ifdef statements for compile time,
1309       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1310    
1311    checkpoint47
1312    differentiable version of checkpoint46n_post
1313    o bug fix in quasihydrostaticterms
1314    o * "clean" adjoint code (in terms of extensive recomputations)
1315        can now be obtained for all GMREDI options (i.e. for
1316        - GM_VISBECK_VARIABLE_K
1317        - GM_NON_UNITY_DIAGONAL
1318        - GM_EXTRA_DIAGONAL
1319        - GM_BOLUS_ADVEC )
1320      * However, wrong gradient check problem remains unsolved.
1321      * New CPP options have been introduced for different
1322        tapering schemes
1323    o external_fields_load now part of differentiation list
1324    o pressure needs multiple storing;
1325      would be nice to have store_pressure at beginning or
1326      end of forward_step, e.g. by having phiHyd global (5-dim.)
1327      (NB: pressure is needed for certain cases in find_rho,
1328      which is also invoked through convective_adjustment).
1329    o recomputations in find_rho for cases
1330     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1331    o #define ATMOSPHERIC_LOADING should be differentiable
1332    o ini_forcing shifted to begining of initialise_varia
1333    o Incorporating QNVS line search routines into MITgcm
1334      (this is separate code, and therefore not under pkg)
1335      lsopt/, optim/
1336    o Updated verification/carbon/
1337      - #define GM_VISBECK_VARIABLE_K
1338      - GM_taper_scheme    = 'ldd97'    
1339    
1340    checkpoint46n_post
1341    Merging from release1_p8:
1342    o verification/natl_box:
1343      updating new external_fields_load routine
1344    o New package: pkg/seaice
1345      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1346      The sea-ice code is based on Hibler (1979-1980).
1347      Two sea-ice dynamic solvers, ADI and LSR, are included.
1348      In addition to computing prognostic sea-ice variables and diagnosing
1349      the forcing/external data fields that drive the ocean model,
1350      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1351      The implied surface heat flux is then stored in variable
1352      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1353      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1354      non-local transport term.  Because this call precedes model
1355      thermodynamics, temperature under sea-ice may not be "exactly" at
1356      the freezing point by the time theta is dumped or time-averaged.
1357      N.B.: fairly large differences in accuracy occur across
1358            different platforms/compilers; comparison between
1359            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1360            generated output gives:
1361       T           S           U           V
1362      C D M    c        m  s        m  s        m  s        m  s
1363      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1364      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1365      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1366    
1367      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1368    o GAD:
1369      - generated new common blocks to account for call of
1370        same gad routines with differing traceridentities
1371        (needed to modify tracerIdentity indices in GAD.h)
1372      - generated separate common blocks for case useCubedSphereExchange
1373        (Department of Futurology)
1374      - parameter lists to gmredi_?transport: added tracerIdentity
1375      - added new key indices to tamc.h
1376    o external_fields_load:
1377      - added this routine to TAF list
1378      - needed to make some common blocks global and additional storing
1379        along the same lines as exf package (checkpoint_lev?_directives.h)
1380    o exf:
1381      updated external forcing package
1382      - bug fixes carried over from ecco-branch
1383        (missing OBCS_OPTIONS.h in two routines)
1384      - enable easy to use "no forcing".
1385      - added exf I/O for atmospheric loading
1386      - added exf I/O for runoff data
1387      - transfered scaling between exf <-> MITgcm to exf namelist
1388    o Adding new verification experiment global_with_exf.
1389      This verification experiment is almost identical to the
1390      global_ocean.90x40x15 experiment, except that it uses
1391      the exf (and cal) package instead of the
1392      external_fields_load routine (cf README file).
1393    
1394    checkpoint46m_post
1395    o modified testscript to return -- when there are no lines of "%MON" output
1396    o added new flag "quasiHydrostatic" for QH mode
1397      and new routine quasihydrostaticterms()
1398    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1399      New routine: mom_u_coriolis_nh()
1400    o fixed sign of non-hydrostatic metric terms in u and v equations.
1401      Depend on correct sign of gravitySign.
1402    o added work.pc* to .cvsignore in aim directories using ifc
1403    o introduced flag for controllin non-hydrostatic metric terms
1404    o removed gravitySign from PARM04
1405    o switched to g77/ifc from pgf77 in aim experiments
1406    
1407    checkpoint46l_post
1408    o made convective adjustment work with pressure coordinates:
1409     - changed the direction of k-loop in convective_adjustment.F for the
1410       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1411     - adjusted the reference pressure k-index in convective_adjustment.F
1412     - adjusted the convection condition in convect.F (in analogy to
1413       calc_ivdc.F)
1414     - convective_adjustment no longer computes anything on the halos
1415     - removed the warnings about negative salinity from find_rho.F and
1416       find_alpha.F; instead the new routine look_for_neg_salinity, called
1417       at the beginning of find_rho, find_alpha, and find_beta, does a
1418       check of the entire slice, if CPP-option
1419       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1420    checkpoint46l_pre
1421    
1422    checkpoint46k_post
1423    o fixed the verification/global_ocean.90x40x15 experiment:
1424     - new bathymetry (the world according to A., JMC, and M.)
1425     - new initial fields and forcing fields (*.bin files)
1426     - new POLY3.COEFFS (for the next release one should switch to a full
1427       equation of state: JMD95P or MDJWF)
1428     - fixed several errors and redundancies in the data file
1429     - experiment uses looped cells
1430     - added matlab directory with diagnostic scripts for plotting of output
1431    
1432    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1433     - read AIM physics parameters from a file (data.aimphys)
1434     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1435    
1436    checkpoint46j_post
1437    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1438    o move wVel computation at the end of the time step, in S/R integr_continuity
1439    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1440    o update timeave pkg for wVel diagnostic.
1441    checkpoint46j_pre
1442    
1443    checkpoint46i_post
1444    o Clean up AIM package (and keep the results unchanged):
1445      include CPP_OPTION and use IMPLICT NONE in all routines ;
1446      declare all the variables _RL ; use _d 0 for all numerical constants.
1447      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1448    
1449    checkpoint46h_post
1450    o cleaned up the use of rhoNil and rhoConst.
1451      - rhoNil should only appear in the LINEAR equation of state, everywhere
1452        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1453        and the dynamical equations are all divided by rhoConst
1454    o introduced new parameter rhoConstFresh, a reference density of fresh
1455      water, to remove the fresh water flux's dependence on rhoNil. The default
1456      value is 999.8 kg/m^3
1457    o cleanup up external_forcing.F and external_forcing_surf.F
1458      - can now be used by both OCEANIC and OCEANICP
1459    checkpoint46h_pre
1460    
1461     Added code to convert surface volume flux (fresh water) into
1462     a mass flux when using P coordinates in the ocean (OCEANICP).
1463     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1464    
1465    checkpoint46g_post
1466    o Include a new diagnostic variable phiHydLow for the ocean model
1467      - in z-coordinates, it is the bottom pressure anomaly
1468      - in p-coordinates, it is the sea surface elevation
1469      - in both cases, these variable have global drift, reflecting the mass
1470        drift in z-coordinates and the volume drift in p-coordinates
1471      - included time averaging for phiHydLow, be aware of the drift!
1472    o depth-dependent computation of Bo_surf for pressure coordinates
1473      in the ocean (buoyancyRelation='OCEANICP')
1474      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1475        Theta, Salinity, and Pressure in the parameter list. This routine is
1476        presently contained in find_rho.F. This routine does not give the
1477        correct density for 'POLY3', which would be a z-dependent reference
1478        density.
1479    o cleaned up find_rho
1480      - removed obsolete 'eqn' from the parameter list.
1481    o added two new verification experiments: gop and goz
1482      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1483    checkpoint46g_pre
1484    
1485    checkpoint46f_post
1486    o Enable tangent linear (forward mode) gradient checks:
1487      - extended active file handling to g_... files
1488      - added TANGENT_SIMULATION to theSimulationMode
1489      - extended grdchk package accordingly
1490    o added tangent linear setup in verification/carbon/code_ftl
1491    o added adjoint setup in verification/front_relax/code_ad
1492    
1493    checkpoint46e_post
1494  o Added new equation of state -> MDJWF  o Added new equation of state -> MDJWF
1495    - EOS of McDougall et al., 2002, JAOT, submitted    - EOS of McDougall et al., 2002, JAOT, submitted
1496    - caveat: the equation of state is only valid for a smaller (more    - caveat: the equation of state is only valid for a smaller (more
# Line 12  o Added new equation of state -> MDJWF Line 1499  o Added new equation of state -> MDJWF
1499    - added more check values for density in check_eos (ini_eos.F), some of    - added more check values for density in check_eos (ini_eos.F), some of
1500      the old check values are out of the range of the MDJWF-eos, so don't      the old check values are out of the range of the MDJWF-eos, so don't
1501      expect perfect matches for those      expect perfect matches for those
1502  checkpoint47d_pre  checkpoint46e_pre
1503    
1504  checkpoint46d_post  checkpoint46d_post
1505  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and

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